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HA12226F Datasheet(PDF) 1 Page - Renesas Technology Corp |
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HA12226F Datasheet(HTML) 1 Page - Renesas Technology Corp |
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1 / 84 page  Rev.6.00 Jun 15, 2005 page 1 of 83 HA12226F/HA12227F Audio Signal Processor for Cassette Deck (Dolby B-type NR with Recording System) REJ03F0133-0600 Previous: ADE-207-270E Rev.6.00 Jun 15, 2005 Description The HA12226F/HA12227F are silicon monolithic bipolar IC providing Dolby noise reduction system*1, music sensor system, REC equalizer system and each electronic control switch in one chip. Note: 1. Dolby is a trademark of Dolby Laboratories Licensing Corporation. A license from Dolby Laboratories Licensing Corporation is required for the use of this IC. The HA12227F is not built-in Dolby B-NR. Functions • Dolby B-NR* 2 × 2 channel • REC equalizer × 2 channel • Music sensor × 1 channel • Pass amp. × 2 channel • Each electronic control switch to change REC equalizer, bias, etc. Note: 2. The HA12227F is not built-in Dolby B-NR. Features • REC equalizer is very small number of external parts and have 4 types of frequency characteristics built-in. • 2 types of input for PB, 1 type of input for REC. • 70µ - PB equalizer changing system built-in. • Dolby NR* 2 with dubbing double cassette decks. Unprocessed signal output available from recording out terminals during PB mode. • Provide stable music sensor system, available to design music sensing time and level. • Controllable from direct micro-computer output. • Bias oscillator control switch built-in. • NR ON / OFF and REC / PB fully electronic control switching built-in. • Normal-speed / high-speed, Normal / Crom and PB equalizer fully electronic control switching built-in. • Available to reduce substrate-area because of high integration and small external parts. |
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